C#获得系统打开的端口和状态，可检测出系统所有的端口的使用状态，与网络相关的端口，则会显示出正在使用的IP地址，有一些端口正在处于监听状态-C# open ports and status of the system can detect all ports use state associated with the network port, it will show the IP address being used, some ports are in a listening state